JAD,
Just so you know where I stand: There is no doubt that broken families and the high divorce rates, a more transient population, movement away from extended family structures and various forms of abuse cause many societal issues which we must work to repair...as a society. But, scientifically, whether that breakdown is a direct cause or secondary or incidental cause of people like Rodgers going on a violent rampage is the question. Rebuilding families and providing for mental/emotional healthcare seem to both be moral and laudable goals.
Cody